@evergis/color - npm Package Compare versions

Comparing version 0.0.2 to 0.0.3

dist/es/index.js

@@ -468,2 +468,32 @@ /**
 
-export { Color };
+class ColorScale {
+    constructor(palette) {
+        this.palette = palette;
+    }
+    getColor(p) {
+        const palette = this.palette.slice();
+        palette[0][0] = 0;
+        palette[palette.length - 1][0] = 1;
+        let colors = palette.map(item => { return new Color(item[1]); });
+        if (p >= 1) {
+            let color = new Color(palette[palette.length - 1][1]);
+            color.a = 255;
+            return color.toString();
+        }
+        for (let i = 0; i < palette.length; i++) {
+            if (palette[i][0] > p) {
+                let width = palette[i][0] - palette[i - 1][0];
+                let color1 = colors[i - 1];
+                let color2 = colors[i];
+                let k = (p - palette[i - 1][0]) / width;
+                let channels = ['r', 'g', 'b', 'a'].map(function (ch) { return Math.round(color1[ch] + (color2[ch] - color1[ch]) * k); });
+                channels[3] = 1;
+                return 'rgba(' + channels.join(',') + ')';
+            }
+        }
+        return null;
+    }
+    ;
+}
+
+export { Color, ColorScale };

dist/lib/index.js

@@ -474,3 +474,34 @@ (function (global, factory) {
 
+    class ColorScale {
+        constructor(palette) {
+            this.palette = palette;
+        }
+        getColor(p) {
+            const palette = this.palette.slice();
+            palette[0][0] = 0;
+            palette[palette.length - 1][0] = 1;
+            let colors = palette.map(item => { return new Color(item[1]); });
+            if (p >= 1) {
+                let color = new Color(palette[palette.length - 1][1]);
+                color.a = 255;
+                return color.toString();
+            }
+            for (let i = 0; i < palette.length; i++) {
+                if (palette[i][0] > p) {
+                    let width = palette[i][0] - palette[i - 1][0];
+                    let color1 = colors[i - 1];
+                    let color2 = colors[i];
+                    let k = (p - palette[i - 1][0]) / width;
+                    let channels = ['r', 'g', 'b', 'a'].map(function (ch) { return Math.round(color1[ch] + (color2[ch] - color1[ch]) * k); });
+                    channels[3] = 1;
+                    return 'rgba(' + channels.join(',') + ')';
+                }
+            }
+            return null;
+        }
+        ;
+    }
+
     exports.Color = Color;
+    exports.ColorScale = ColorScale;
 
@@ -477,0 +508,0 @@ Object.defineProperty(exports, '__esModule', { value: true });

package.json

 {
   "name": "@evergis/color",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "description": "",
@@ -11,2 +11,3 @@ "main": "dist/lib/index.js",
     "build": "cross-env NODE_ENV=production rollup --config rollup.config.js",
+    "dev": "cross-env NODE_ENV=production rollup --config rollup.config.js --watch",
     "prepublishOnly": "npm i && npm run build"
@@ -13,0 +14,0 @@ },

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Improved metrics

Total package byte prevSize

66033

increased by6.92%

Number of package files

15

increased by66.67%

Lines of code

1986

increased by5.58%

No dependency changes